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GENERIC revision 1.62.6.2
      1  1.62.6.2  nathanw # $NetBSD: GENERIC,v 1.62.6.2 2002/01/08 00:28:35 nathanw Exp $
      2  1.62.6.2  nathanw #
      3  1.62.6.2  nathanw # GENERIC machine description file
      4  1.62.6.2  nathanw # 
      5  1.62.6.2  nathanw # This machine description file is used to generate the default NetBSD
      6  1.62.6.2  nathanw # kernel.  The generic kernel does not include all options, subsystems
      7  1.62.6.2  nathanw # and device drivers, but should be useful for most applications.
      8  1.62.6.2  nathanw #
      9  1.62.6.2  nathanw # The machine description file can be customised for your specific
     10  1.62.6.2  nathanw # machine to reduce the kernel size and improve its performance.
     11  1.62.6.2  nathanw #
     12  1.62.6.2  nathanw # For further information on compiling NetBSD kernels, see the config(8)
     13  1.62.6.2  nathanw # man page.
     14  1.62.6.2  nathanw #
     15  1.62.6.2  nathanw # For further information on hardware support for this architecture, see
     16  1.62.6.2  nathanw # the intro(4) man page.  For further information about kernel options
     17  1.62.6.2  nathanw # for this architecture, see the options(4) man page.  For an explanation
     18  1.62.6.2  nathanw # of each device driver in this file see the section 4 man page for the
     19  1.62.6.2  nathanw # device.
     20  1.62.6.2  nathanw 
     21  1.62.6.2  nathanw include 	"arch/x68k/conf/std.x68k"
     22  1.62.6.2  nathanw 
     23  1.62.6.2  nathanw #ident 		"GENERIC-$Revision: 1.62.6.2 $"
     24  1.62.6.2  nathanw 
     25  1.62.6.2  nathanw maxusers	8
     26  1.62.6.2  nathanw 
     27  1.62.6.2  nathanw ## System kernel configuration.  See options(4) for more detail.
     28  1.62.6.2  nathanw 
     29  1.62.6.2  nathanw 
     30  1.62.6.2  nathanw ## Options for variants of the m68k MPU
     31  1.62.6.2  nathanw ## you must have at least the correct one; REQUIRED
     32  1.62.6.2  nathanw options 	M68030
     33  1.62.6.2  nathanw options 	M68040
     34  1.62.6.2  nathanw options 	M68060
     35  1.62.6.2  nathanw ## If you want an optimized kernel for a specific processor, use either:
     36  1.62.6.2  nathanw #makeoptions	CMACHFLAGS="-m68030"
     37  1.62.6.2  nathanw #makeoptions	CMACHFLAGS="-m68040 -Wa,-m68030 -Wa,-m68851"
     38  1.62.6.2  nathanw #makeoptions	CMACHFLAGS="-m68060 -Wa,-m68030 -Wa,-m68851"
     39  1.62.6.2  nathanw 
     40  1.62.6.2  nathanw 
     41  1.62.6.2  nathanw #### System options specific to the x68k port
     42  1.62.6.2  nathanw 
     43  1.62.6.2  nathanw options 	EXTENDED_MEMORY		# support for >16MB memory
     44  1.62.6.2  nathanw options 	FPU_EMULATE		# software fpu emulation for MC68030
     45  1.62.6.2  nathanw options 	FPSP			# floating point emulation for MC68040
     46  1.62.6.2  nathanw options 	M060SP			# int/fp emulation for MC68060
     47  1.62.6.2  nathanw #options 	JUPITER			# support for "Jupiter-X" accelerator
     48  1.62.6.2  nathanw #options 	MAPPEDCOPY		# use page mapping for large copyin/copyout
     49  1.62.6.2  nathanw #options 	ZSCONSOLE,ZSCN_SPEED="9600"	# use serial console
     50  1.62.6.2  nathanw 
     51  1.62.6.2  nathanw 
     52  1.62.6.2  nathanw #### System options that are the same for all ports
     53  1.62.6.2  nathanw 
     54  1.62.6.2  nathanw ## Root device configuration: change the ?'s if you are going to use a
     55  1.62.6.2  nathanw ## nonstandard root partition (other than where the kernel is booted from)
     56  1.62.6.2  nathanw ## and/or nonstandard root type (not ffs or nfs).  Normally this can be
     57  1.62.6.2  nathanw ## automagically determined at boot time.
     58  1.62.6.2  nathanw 
     59  1.62.6.2  nathanw config		netbsd	root on ? type ?
     60  1.62.6.2  nathanw #config		netbsd	root on sd0 type ffs
     61  1.62.6.2  nathanw 
     62  1.62.6.2  nathanw ## RTC is offset from GMT; -540 means JST-9
     63  1.62.6.2  nathanw options 	RTC_OFFSET=-540	# hardware clock is this many mins. west of GMT
     64  1.62.6.2  nathanw 
     65  1.62.6.2  nathanw ## System call tracing (see ktrace(1)).
     66  1.62.6.2  nathanw options 	KTRACE
     67  1.62.6.2  nathanw 
     68  1.62.6.2  nathanw ## Collect statistics on kernel malloc's and free's.  This does have a
     69  1.62.6.2  nathanw ## significant performance hit on slower machines, so it is intended for
     70  1.62.6.2  nathanw ## diagnostic use only.
     71  1.62.6.2  nathanw #options 	KMEMSTATS
     72  1.62.6.2  nathanw 
     73  1.62.6.2  nathanw ## System V compatible IPC subsystem.  (msgctl(2), semctl(2), and shmctl(2))
     74  1.62.6.2  nathanw options 	SYSVMSG		# System V message queues
     75  1.62.6.2  nathanw options 	SYSVSEM		# System V semaphores
     76  1.62.6.2  nathanw #options 	SEMMNI=10	# number of semaphore identifiers
     77  1.62.6.2  nathanw #options 	SEMMNS=60	# number of semaphores in system
     78  1.62.6.2  nathanw #options 	SEMUME=10	# max number of undo entries per process
     79  1.62.6.2  nathanw #options 	SEMMNU=30	# number of undo structures in system
     80  1.62.6.2  nathanw options 	SYSVSHM		# System V shared memory
     81  1.62.6.2  nathanw #options 	SHMMAXPGS=1024	# 1024 pages is the default
     82  1.62.6.2  nathanw 
     83  1.62.6.2  nathanw ## Loadable kernel module support
     84  1.62.6.2  nathanw #options 	LKM
     85  1.62.6.2  nathanw 
     86  1.62.6.2  nathanw ## NFS boot options; not supported currently: needs nfsboot program
     87  1.62.6.2  nathanw #options 	NFS_BOOT_BOOTPARAM
     88  1.62.6.2  nathanw #options 	NFS_BOOT_BOOTP
     89  1.62.6.2  nathanw #options 	NFS_BOOT_DHCP
     90  1.62.6.2  nathanw 
     91  1.62.6.2  nathanw #### Debugging options
     92  1.62.6.2  nathanw 
     93  1.62.6.2  nathanw ## The DDB in-kernel debugger runs at panic (unless DDB_ONPANIC=0), or at
     94  1.62.6.2  nathanw ## serial console break or keyboard reset, where the PROM would normally
     95  1.62.6.2  nathanw ## intercept.  DDB_HISTORY_SIZE adds up/down arrow command history.
     96  1.62.6.2  nathanw #options 	DDB			# kernel dynamic debugger
     97  1.62.6.2  nathanw #options 	DDB_HISTORY_SIZE=100	# enable history editing in DDB
     98  1.62.6.2  nathanw #options 	DDB_ONPANIC=1		# see also sysctl(8): `ddb.onpanic'
     99  1.62.6.2  nathanw #options 	PANICBUTTON		# interrupt switch invokes DDB
    100  1.62.6.2  nathanw 
    101  1.62.6.2  nathanw ## You may also use gdb, on another computer connected to this machine over
    102  1.62.6.2  nathanw ## a serial port.  Both KGDB_DEV and KGDB_DEVRATE should be specified;
    103  1.62.6.2  nathanw ## KGDB_DEV is a dev_t encoded device number of the serial port to use.
    104  1.62.6.2  nathanw ## KGDB is not supported for now.
    105  1.62.6.2  nathanw #options 	KGDB			# support for kernel gdb
    106  1.62.6.2  nathanw #options 	KGDB_DEV=0xc00		# kgdb device number
    107  1.62.6.2  nathanw #options 	KGDB_DEVRATE=9600	# baud rate
    108  1.62.6.2  nathanw 
    109  1.62.6.2  nathanw ## Compile the kernel with debugging symbols (`netbsd.gdb' is the debug file),
    110  1.62.6.2  nathanw ## such that gdb(1) can be used on a kernel coredump.
    111  1.62.6.2  nathanw 
    112  1.62.6.2  nathanw #makeoptions	DEBUG="-g"
    113  1.62.6.2  nathanw 
    114  1.62.6.2  nathanw ## Adds code to the kernel that does internal consistency checks, and will
    115  1.62.6.2  nathanw ## cause the kernel to panic if corruption of internal data structures
    116  1.62.6.2  nathanw ## is detected.
    117  1.62.6.2  nathanw #options 	DIAGNOSTIC	# extra kernel sanity checking
    118  1.62.6.2  nathanw 
    119  1.62.6.2  nathanw ## Enable (possibly expensive) debugging code that may also display messages
    120  1.62.6.2  nathanw ## on the system console
    121  1.62.6.2  nathanw #options 	DEBUG
    122  1.62.6.2  nathanw 
    123  1.62.6.2  nathanw ## Make SCSI error messages more verbose when explaining their meanings.
    124  1.62.6.2  nathanw #options 	SCSIVERBOSE
    125  1.62.6.2  nathanw 
    126  1.62.6.2  nathanw ## `INSECURE' turns off the kernel security level (securelevel = 0 always).
    127  1.62.6.2  nathanw ## This allows writing to /dev/mem, loading kernel modules while multi-user,
    128  1.62.6.2  nathanw ## and other insecurities good only for development work.  Do not use this
    129  1.62.6.2  nathanw ## option on a production machine.
    130  1.62.6.2  nathanw #options 	INSECURE
    131  1.62.6.2  nathanw 
    132  1.62.6.2  nathanw ## Allow non-root users to grab /dev/console with programs such as xconsole.
    133  1.62.6.2  nathanw ## `xconsole' therefore does not need setuid root with this option enabled.
    134  1.62.6.2  nathanw #options 	UCONSOLE
    135  1.62.6.2  nathanw 
    136  1.62.6.2  nathanw ## `FDSCRIPTS' allows non-readable but executable scripts by providing a
    137  1.62.6.2  nathanw ## pre-opened opaque file to the script interpreter.  `SETUIDSCRIPTS',
    138  1.62.6.2  nathanw ## which implies FDSCRIPTS, allows scripts to be set-user-id using the same
    139  1.62.6.2  nathanw ## opaque file mechanism.  Perl calls this "secure setuid scripts."
    140  1.62.6.2  nathanw 
    141  1.62.6.2  nathanw #options 	FDSCRIPTS
    142  1.62.6.2  nathanw #options 	SETUIDSCRIPTS
    143  1.62.6.2  nathanw 
    144  1.62.6.2  nathanw ## Options for compatibility with previous releases foreign system binaries.
    145  1.62.6.2  nathanw 
    146  1.62.6.2  nathanw options 	COMPAT_43	# 4.3BSD system interfaces
    147  1.62.6.2  nathanw options 	COMPAT_09	# NetBSD 0.9 binary compatibility
    148  1.62.6.2  nathanw options 	COMPAT_10	# NetBSD 1.0 binary compatibility
    149  1.62.6.2  nathanw options 	COMPAT_11	# NetBSD 1.1 binary compatibility
    150  1.62.6.2  nathanw options 	COMPAT_12	# NetBSD 1.2 binary compatibility
    151  1.62.6.2  nathanw options 	COMPAT_13	# NetBSD 1.3 binary compatibility
    152  1.62.6.2  nathanw options 	COMPAT_14	# NetBSD 1.4 binary compatibility
    153  1.62.6.2  nathanw options 	COMPAT_AOUT_M68K # compatibility with NetBSD/m68k a.out
    154  1.62.6.2  nathanw #options 	COMPAT_M68K4K	# NetBSD/m68k4k binaries
    155  1.62.6.2  nathanw #options 	COMPAT_SUNOS	# SunOS 4.x binary compatibility; broken
    156  1.62.6.2  nathanw #options 	COMPAT_SVR4	# SVR4 binary compatibility; broken
    157  1.62.6.2  nathanw #options 	COMPAT_LINUX	# Linux/m68k binary compatibility
    158  1.62.6.2  nathanw #options 	TCP_COMPAT_42	# 4.2BSD TCP/IP bug compat. Not recommended.
    159  1.62.6.2  nathanw 
    160  1.62.6.2  nathanw ## File systems.
    161  1.62.6.2  nathanw file-system	FFS		# Berkeley Fast Filesystem
    162  1.62.6.2  nathanw file-system	NFS		# Sun NFS-compatible filesystem client
    163  1.62.6.2  nathanw file-system	KERNFS		# kernel data-structure filesystem
    164  1.62.6.2  nathanw #file-system	NULLFS		# NULL layered filesystem (buggy)
    165  1.62.6.2  nathanw #file-system 	OVERLAY		# overlay file system
    166  1.62.6.2  nathanw file-system	MFS		# memory-based filesystem
    167  1.62.6.2  nathanw #file-system	FDESC		# user file descriptor filesystem
    168  1.62.6.2  nathanw file-system	UMAPFS		# uid/gid remapping filesystem
    169  1.62.6.2  nathanw #file-system	LFS		# Log-structured filesystem (experimental)
    170  1.62.6.2  nathanw #file-system	PORTAL		# portal filesystem (experimental)
    171  1.62.6.2  nathanw file-system	PROCFS		# /proc
    172  1.62.6.2  nathanw file-system	CD9660		# ISO 9660 + Rock Ridge file system
    173  1.62.6.2  nathanw #file-system	UNION		# union file system (a little buggy)
    174  1.62.6.2  nathanw file-system	MSDOSFS		# MS-DOS FAT filesystem(s).
    175  1.62.6.2  nathanw #file-system 	ADOSFS		# AmigaDOS filesystem
    176  1.62.6.2  nathanw 
    177  1.62.6.2  nathanw ## File system options.
    178  1.62.6.2  nathanw options 	NFSSERVER	# Sun NFS-compatible filesystem server
    179  1.62.6.2  nathanw #options 	QUOTA		# FFS quotas
    180  1.62.6.2  nathanw #options 	FFS_EI		# FFS Endian Independent support
    181  1.62.6.2  nathanw options 	SOFTDEP		# FFS soft updates support.
    182  1.62.6.2  nathanw 
    183  1.62.6.2  nathanw ## Network protocol support.  In most environments, INET is required.
    184  1.62.6.2  nathanw options 	INET		# IP (Internet Protocol) v4
    185  1.62.6.2  nathanw options 	INET6		# IPV6
    186  1.62.6.2  nathanw #options 	IPSEC		# IP security
    187  1.62.6.2  nathanw #options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
    188  1.62.6.2  nathanw #options 	IPSEC_DEBUG	# debug for IP security
    189  1.62.6.2  nathanw #options 	GATEWAY		# packet forwarding ("router switch")
    190  1.62.6.2  nathanw #options 	MROUTING	# packet forwarding of multicast packets
    191  1.62.6.2  nathanw #options 	DIRECTED_BROADCAST	# allow broadcasts through routers
    192  1.62.6.2  nathanw #options 	NS		# Xerox NS networking
    193  1.62.6.2  nathanw #options 	NSIP		# Xerox NS tunneling over IP
    194  1.62.6.2  nathanw #options 	ISO,TPIP	# OSI networking
    195  1.62.6.2  nathanw #options 	EON		# OSI tunneling over IP
    196  1.62.6.2  nathanw #options 	CCITT,LLC,HDLC	# X.25 packet switched protocol
    197  1.62.6.2  nathanw #options 	NETATALK	# AppleTalk (over Ethernet) protocol
    198  1.62.6.2  nathanw #options 	NTP		# Network Time Protocol in-kernel support
    199  1.62.6.2  nathanw #options 	PPS_SYNC	# Add serial line synchronization for NTP
    200  1.62.6.2  nathanw options 	PFIL_HOOKS	# Add pfil(9) hooks, intended for custom LKMs.
    201  1.62.6.2  nathanw #options 	IPFILTER_LOG	# Add ipmon(8) logging for ipfilter device
    202  1.62.6.2  nathanw #options 	PPP_BSDCOMP	# Add BSD compression to ppp device
    203  1.62.6.2  nathanw #options 	PPP_DEFLATE	# Add deflate (libz) compression to ppp device
    204  1.62.6.2  nathanw #options 	PPP_FILTER	# Add active filters for ppp (via bpf)
    205  1.62.6.2  nathanw #options 	TCP_DEBUG	# Record last TCP_NDEBUG packets with SO_DEBUG
    206  1.62.6.2  nathanw 
    207  1.62.6.2  nathanw 
    208  1.62.6.2  nathanw #### Device configurations
    209  1.62.6.2  nathanw 
    210  1.62.6.2  nathanw ## Fundamental devices; see also std.x68k
    211  1.62.6.2  nathanw dmac0	at intio0 addr 0xe84000		# DMA controler
    212  1.62.6.2  nathanw xel0	at intio0
    213  1.62.6.2  nathanw opm0	at intio0 addr 0xe90000		# OPM: required for fdc
    214  1.62.6.2  nathanw 
    215  1.62.6.2  nathanw ## Display devices and console
    216  1.62.6.2  nathanw grfbus0	at mainbus0			# bitmapped displays
    217  1.62.6.2  nathanw grf0	at grfbus0			# multiplane graphics
    218  1.62.6.2  nathanw grf1	at grfbus0			# flexible graphics
    219  1.62.6.2  nathanw 
    220  1.62.6.2  nathanw kbd0	at mfp0				# standard keyboard
    221  1.62.6.2  nathanw ite0	at grf0				# internal terminal emulator
    222  1.62.6.2  nathanw options 	ITE_KERNEL_ATTR=4	# bold for kernel messages
    223  1.62.6.2  nathanw 					# see /sys/arch/x68k/dev/itevar.h
    224  1.62.6.2  nathanw pseudo-device	pow		2	# software power switch
    225  1.62.6.2  nathanw 
    226  1.62.6.2  nathanw ## floppy disks
    227  1.62.6.2  nathanw fdc0	at intio0 addr 0xe94000 intr 96 dma 0 dmaintr 100 # floppy controler
    228  1.62.6.2  nathanw fd*	at fdc0 unit ?			# builtin floppy drives
    229  1.62.6.2  nathanw 
    230  1.62.6.2  nathanw ## SCSI devices
    231  1.62.6.2  nathanw scsirom0 at intio0 addr 0xfc0000		# Built-in SCSI BIOS
    232  1.62.6.2  nathanw scsirom1 at intio0 addr 0xea0020		# External SCSI BIOS
    233  1.62.6.2  nathanw spc0	at scsirom0				# genuin SCSI
    234  1.62.6.2  nathanw spc1	at scsirom1				# genuin SCSI
    235  1.62.6.2  nathanw scsibus* at spc?
    236  1.62.6.2  nathanw mha0	at scsirom1				# Mankai MK-HA1 (Mach-2)
    237  1.62.6.2  nathanw scsibus* at mha0
    238  1.62.6.2  nathanw 
    239  1.62.6.2  nathanw sd*	at scsibus? target ? lun ?	# SCSI disks
    240  1.62.6.2  nathanw cd*	at scsibus? target ? lun ?	# SCSI CD-ROMs
    241  1.62.6.2  nathanw #st*	at scsibus? target ? lun ?	# SCSI tapes
    242  1.62.6.2  nathanw #ss*	at scsibus? target ? lun ?	# SCSI scanners
    243  1.62.6.2  nathanw #ch*	at scsibus? target ? lun ?	# SCSI changer devices
    244  1.62.6.2  nathanw #uk*	at scsibus? target ? lun ?	# SCSI unknown devices
    245  1.62.6.2  nathanw 
    246  1.62.6.2  nathanw ## Ports
    247  1.62.6.2  nathanw zsc0	at intio0 addr 0xe98000 intr 112
    248  1.62.6.2  nathanw zstty0	at zsc0 channel 0		# built-in RS-232C
    249  1.62.6.2  nathanw ms0	at zsc0 channel 1		# standard mouse
    250  1.62.6.2  nathanw #zsc1	at intio0 addr 0xeafc00 intr 113
    251  1.62.6.2  nathanw #zstty2	at zsc1 channel 0
    252  1.62.6.2  nathanw #zstty3	at zsc1 channel 1
    253  1.62.6.2  nathanw #zsc2	at intio0 addr 0xeafc10 intr 114
    254  1.62.6.2  nathanw #zstty4	at zsc2 channel 0
    255  1.62.6.2  nathanw #zstty5	at zsc2 channel 1
    256  1.62.6.2  nathanw par0	at intio0 addr 0xe8c000 	# Builtin printer port
    257  1.62.6.2  nathanw 
    258  1.62.6.2  nathanw pseudo-device	sram			# battery-backuped static RAM
    259  1.62.6.2  nathanw pseudo-device	bell			# OPM bell
    260  1.62.6.2  nathanw 
    261  1.62.6.2  nathanw xcom0	at mainbus0			# NS16550 fast serial
    262  1.62.6.2  nathanw xcom1	at mainbus0
    263  1.62.6.2  nathanw 
    264  1.62.6.2  nathanw ## Audio device
    265  1.62.6.2  nathanw vs0 at intio0 addr 0xe92000 dma 3 dmaintr 106
    266  1.62.6.2  nathanw audio*	at vs?
    267  1.62.6.2  nathanw 
    268  1.62.6.2  nathanw ## Network interfaces
    269  1.62.6.2  nathanw ne*	at intio0 addr 0xece300 intr 249	# Nereid Ethernet
    270  1.62.6.2  nathanw neptune0 at intio0 addr 0xece000 intr 249	# Neptune-X
    271  1.62.6.2  nathanw neptune1 at intio0 addr 0xece400 intr 249	# Neptune-X at alt. addr.
    272  1.62.6.2  nathanw ne*	at neptune? addr 0x300			# NE2000 or clone
    273  1.62.6.2  nathanw 
    274  1.62.6.2  nathanw 
    275  1.62.6.2  nathanw #### Pseudo devices
    276  1.62.6.2  nathanw 
    277  1.62.6.2  nathanw ## A disk-like interface to files.  Can be used to create floppy, CD,
    278  1.62.6.2  nathanw ## miniroot images, etc.
    279  1.62.6.2  nathanw 
    280  1.62.6.2  nathanw pseudo-device	vnd	4
    281  1.62.6.2  nathanw 
    282  1.62.6.2  nathanw ## Concatenated and striped disks; with this, you can create a software-based
    283  1.62.6.2  nathanw ## disk array similar to a "RAID 0" setup.  See ccd(4).
    284  1.62.6.2  nathanw 
    285  1.62.6.2  nathanw #pseudo-device	ccd	4
    286  1.62.6.2  nathanw 
    287  1.62.6.2  nathanw ## RAIDframe disk driver: software RAID driver.  See raid(4).
    288  1.62.6.2  nathanw 
    289  1.62.6.2  nathanw #pseudo-device	raid	4
    290  1.62.6.2  nathanw #options 	RAID_AUTOCONFIG		# auto-configuration of RAID components
    291  1.62.6.2  nathanw 
    292  1.62.6.2  nathanw ## Memory disk device, used on boot floppies with compressed
    293  1.62.6.2  nathanw ## kernel-plus-root-disk images.
    294  1.62.6.2  nathanw 
    295  1.62.6.2  nathanw #pseudo-device	md	1
    296  1.62.6.2  nathanw 
    297  1.62.6.2  nathanw ## Loopback network interface; required
    298  1.62.6.2  nathanw pseudo-device	loop
    299  1.62.6.2  nathanw 
    300  1.62.6.2  nathanw ## SLIP and CSLIP interfaces, for IP over a serial line.
    301  1.62.6.2  nathanw pseudo-device	sl		1
    302  1.62.6.2  nathanw 
    303  1.62.6.2  nathanw ## PPP, the successor to SLIP.  See pppd(8).
    304  1.62.6.2  nathanw pseudo-device	ppp		1
    305  1.62.6.2  nathanw 
    306  1.62.6.2  nathanw ## PPP over Ethernet (RFC 2516)
    307  1.62.6.2  nathanw pseudo-device	pppoe
    308  1.62.6.2  nathanw 
    309  1.62.6.2  nathanw ## Network "tunnel" device, allowing protocol stacks to run in the userland.
    310  1.62.6.2  nathanw ## This is used by the third-party user-mode "ppp" program, and others.
    311  1.62.6.2  nathanw #pseudo-device	tun		4
    312  1.62.6.2  nathanw 
    313  1.62.6.2  nathanw ## Generic L3 over IP tunnel
    314  1.62.6.2  nathanw #pseudo-device	gre		2	# generic L3 over IP tunnel
    315  1.62.6.2  nathanw 
    316  1.62.6.2  nathanw ## Berkeley Packet Filter, required to run RARPD.  A generic C-language
    317  1.62.6.2  nathanw ## interface that allows selective examining of incoming packets.
    318  1.62.6.2  nathanw pseudo-device	bpfilter	4
    319  1.62.6.2  nathanw 
    320  1.62.6.2  nathanw ## IP Filter, used in firewall and NAT applications.  See ipnat(8) for
    321  1.62.6.2  nathanw ## one example of the use of the IP Filter.
    322  1.62.6.2  nathanw #pseudo-device	ipfilter
    323  1.62.6.2  nathanw 
    324  1.62.6.2  nathanw ## for IPv6
    325  1.62.6.2  nathanw pseudo-device	gif		1	# IPv[46] over IPv[46] tunnel (RFC1933)
    326  1.62.6.2  nathanw #pseudo-device	faith		1	# IPv[46] tcp relay translation i/f
    327  1.62.6.2  nathanw #pseudo-device	stf		1	# 6to4 IPv6 over IPv4 encapsulation
    328  1.62.6.2  nathanw 
    329  1.62.6.2  nathanw ## IEEE 802.1Q Virtual LAN encapsulation, see vlan(4).
    330  1.62.6.2  nathanw pseudo-device	vlan
    331  1.62.6.2  nathanw 
    332  1.62.6.2  nathanw ## Simple inter-network traffic bridging
    333  1.62.6.2  nathanw pseudo-device	bridge
    334  1.62.6.2  nathanw 
    335  1.62.6.2  nathanw #### Other device configuration
    336  1.62.6.2  nathanw 
    337  1.62.6.2  nathanw ## Pseudo ttys, required for network logins and programs like screen.
    338  1.62.6.2  nathanw 
    339  1.62.6.2  nathanw pseudo-device	pty			# pseudo-terminals
    340  1.62.6.2  nathanw 
    341  1.62.6.2  nathanw ## Random device, used to implement /dev/random (a source of random noise),
    342  1.62.6.2  nathanw ## and generate randomness for some kernel formulae.
    343  1.62.6.2  nathanw 
    344  1.62.6.2  nathanw pseudo-device	rnd
    345